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Sweden-Number/dlls/comctl32/tab.c

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/*
* Tab control
*
* Copyright 1998 Anders Carlsson
* Copyright 1999 Alex Priem <alexp@sci.kun.nl>
* Copyright 1999 Francis Beaudet
*
* TODO:
* Image list support
* Multiline support
* Unicode support
*/
#include <string.h>
#include "winbase.h"
#include "commctrl.h"
#include "debugtools.h"
#include "cache.h"
DEFAULT_DEBUG_CHANNEL(tab);
typedef struct
{
UINT mask;
DWORD dwState;
LPSTR pszText;
INT cchTextMax;
INT iImage;
LPARAM lParam;
RECT rect; /* bounding rectangle of the item relative to the
* leftmost item (the leftmost item, 0, would have a
* "left" member of 0 in this rectangle)
*
* additionally the top member hold the row number
* and bottom is unused and should be 0 */
} TAB_ITEM;
typedef struct
{
UINT uNumItem; /* number of tab items */
UINT uNumRows; /* number of tab rows */
INT tabHeight; /* height of the tab row */
INT tabWidth; /* width of tabs */
HFONT hFont; /* handle to the current font */
HCURSOR hcurArrow; /* handle to the current cursor */
HIMAGELIST himl; /* handle to a image list (may be 0) */
HWND hwndToolTip; /* handle to tab's tooltip */
UINT cchTextMax;
INT leftmostVisible; /* Used for scrolling, this member contains
* the index of the first visible item */
INT iSelected; /* the currently selected item */
INT iHotTracked; /* the highlighted item under the mouse */
INT uFocus; /* item which has the focus */
TAB_ITEM* items; /* pointer to an array of TAB_ITEM's */
BOOL DoRedraw; /* flag for redrawing when tab contents is changed*/
BOOL needsScrolling; /* TRUE if the size of the tabs is greater than
* the size of the control */
BOOL fSizeSet; /* was the size of the tabs explicitly set? */
HWND hwndUpDown; /* Updown control used for scrolling */
} TAB_INFO;
/******************************************************************************
* Positioning constants
*/
#define SELECTED_TAB_OFFSET 2
#define HORIZONTAL_ITEM_PADDING 5
#define VERTICAL_ITEM_PADDING 3
#define ROUND_CORNER_SIZE 2
#define FOCUS_RECT_HOFFSET 2
#define FOCUS_RECT_VOFFSET 1
#define DISPLAY_AREA_PADDINGX 2
#define DISPLAY_AREA_PADDINGY 2
#define CONTROL_BORDER_SIZEX 2
#define CONTROL_BORDER_SIZEY 2
#define BUTTON_SPACINGX 10
#define DEFAULT_TAB_WIDTH 96
#define TAB_GetInfoPtr(hwnd) ((TAB_INFO *)GetWindowLongA(hwnd,0))
/******************************************************************************
* Hot-tracking timer constants
*/
#define TAB_HOTTRACK_TIMER 1
#define TAB_HOTTRACK_TIMER_INTERVAL 100 /* milliseconds */
/******************************************************************************
* Prototypes
*/
static void TAB_Refresh (HWND hwnd, HDC hdc);
static void TAB_InvalidateTabArea(HWND hwnd, TAB_INFO* infoPtr);
static void TAB_EnsureSelectionVisible(HWND hwnd, TAB_INFO* infoPtr);
static void TAB_DrawItem(HWND hwnd, HDC hdc, INT iItem);
static void TAB_DrawItemInterior(HWND hwnd, HDC hdc, INT iItem, RECT* drawRect);
static BOOL
TAB_SendSimpleNotify (HWND hwnd, UINT code)
{
NMHDR nmhdr;
nmhdr.hwndFrom = hwnd;
nmhdr.idFrom = GetWindowLongA(hwnd, GWL_ID);
nmhdr.code = code;
return (BOOL) SendMessageA (GetParent (hwnd), WM_NOTIFY,
(WPARAM) nmhdr.idFrom, (LPARAM) &nmhdr);
}
static VOID
TAB_RelayEvent (HWND hwndTip, HWND hwndMsg, UINT uMsg,
WPARAM wParam, LPARAM lParam)
{
MSG msg;
msg.hwnd = hwndMsg;
msg.message = uMsg;
msg.wParam = wParam;
msg.lParam = lParam;
msg.time = GetMessageTime ();
msg.pt.x = LOWORD(GetMessagePos ());
msg.pt.y = HIWORD(GetMessagePos ());
SendMessageA (hwndTip, TTM_RELAYEVENT, 0, (LPARAM)&msg);
}
static LRESULT
TAB_GetCurSel (HWND hwnd)
{
TAB_INFO *infoPtr = TAB_GetInfoPtr(hwnd);
return infoPtr->iSelected;
}
static LRESULT
TAB_GetCurFocus (HWND hwnd)
{
TAB_INFO *infoPtr = TAB_GetInfoPtr(hwnd);
return infoPtr->uFocus;
}
static LRESULT
TAB_GetToolTips (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
TAB_INFO *infoPtr = TAB_GetInfoPtr(hwnd);
if (infoPtr == NULL) return 0;
return infoPtr->hwndToolTip;
}
static LRESULT
TAB_SetCurSel (HWND hwnd,WPARAM wParam)
{
TAB_INFO *infoPtr = TAB_GetInfoPtr(hwnd);
INT iItem=(INT) wParam;
INT prevItem;
prevItem=-1;
if ((iItem >= 0) && (iItem < infoPtr->uNumItem)) {
prevItem=infoPtr->iSelected;
infoPtr->iSelected=iItem;
TAB_EnsureSelectionVisible(hwnd, infoPtr);
TAB_InvalidateTabArea(hwnd, infoPtr);
}
return prevItem;
}
static LRESULT
TAB_SetCurFocus (HWND hwnd,WPARAM wParam)
{
TAB_INFO *infoPtr = TAB_GetInfoPtr(hwnd);
INT iItem=(INT) wParam;
if ((iItem < 0) || (iItem >= infoPtr->uNumItem)) return 0;
if (GetWindowLongA(hwnd, GWL_STYLE) & TCS_BUTTONS) {
FIXME("Should set input focus\n");
} else {
if (infoPtr->iSelected != iItem || infoPtr->uFocus == -1 ) {
infoPtr->uFocus=iItem;
if (TAB_SendSimpleNotify(hwnd, TCN_SELCHANGING)!=TRUE) {
infoPtr->iSelected = iItem;
TAB_SendSimpleNotify(hwnd, TCN_SELCHANGE);
TAB_EnsureSelectionVisible(hwnd, infoPtr);
TAB_InvalidateTabArea(hwnd, infoPtr);
}
}
}
return 0;
}
static LRESULT
TAB_SetToolTips (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
TAB_INFO *infoPtr = TAB_GetInfoPtr(hwnd);
if (infoPtr == NULL) return 0;
infoPtr->hwndToolTip = (HWND)wParam;
return 0;
}
/******************************************************************************
* TAB_InternalGetItemRect
*
* This method will calculate the rectangle representing a given tab item in
* client coordinates. This method takes scrolling into account.
*
* This method returns TRUE if the item is visible in the window and FALSE
* if it is completely outside the client area.
*/
static BOOL TAB_InternalGetItemRect(
HWND hwnd,
TAB_INFO* infoPtr,
INT itemIndex,
RECT* itemRect,
RECT* selectedRect)
{
RECT tmpItemRect,clientRect;
LONG lStyle = GetWindowLongA(hwnd, GWL_STYLE);
/*
* Perform a sanity check and a trivial visibility check.
*/
if ( (infoPtr->uNumItem <=0) ||
(itemIndex >= infoPtr->uNumItem) ||
(!(lStyle &TCS_MULTILINE) && (itemIndex < infoPtr->leftmostVisible)) )
return FALSE;
/*
* Avoid special cases in this procedure by assigning the "out"
* parameters if the caller didn't supply them
*/
if (itemRect==NULL)
itemRect = &tmpItemRect;
/*
* Retrieve the unmodified item rect.
*/
*itemRect = infoPtr->items[itemIndex].rect;
/*
* calculate the times bottom and top based on the row
*/
GetClientRect(hwnd, &clientRect);
if (lStyle & TCS_BOTTOM)
{
itemRect->bottom = clientRect.bottom -
SELECTED_TAB_OFFSET -
itemRect->top * (infoPtr->tabHeight - 2);
itemRect->top = clientRect.bottom -
infoPtr->tabHeight -
itemRect->top * ( infoPtr->tabHeight - 2);
}
else
{
itemRect->bottom = clientRect.top +
infoPtr->tabHeight +
itemRect->top * (infoPtr->tabHeight - 2);
itemRect->top = clientRect.top +
SELECTED_TAB_OFFSET+
itemRect->top * (infoPtr->tabHeight - 2);
}
/*
* "scroll" it to make sure the item at the very left of the
* tab control is the leftmost visible tab.
*/
OffsetRect(itemRect,
-infoPtr->items[infoPtr->leftmostVisible].rect.left,
0);
/*
* Move the rectangle so the first item is slightly offset from
* the left of the tab control.
*/
OffsetRect(itemRect,
SELECTED_TAB_OFFSET,
0);
/*
* Now, calculate the position of the item as if it were selected.
*/
if (selectedRect!=NULL)
{
CopyRect(selectedRect, itemRect);
/*
* The rectangle of a selected item is a bit wider.
*/
InflateRect(selectedRect, SELECTED_TAB_OFFSET, 0);
/*
* If it also a bit higher.
*/
if (GetWindowLongA(hwnd, GWL_STYLE) & TCS_BOTTOM)
{
selectedRect->top -=2; /* the border is thicker on the bottom */
selectedRect->bottom +=SELECTED_TAB_OFFSET;
}
else
{
selectedRect->top -=SELECTED_TAB_OFFSET;
selectedRect->bottom+=1;
}
}
return TRUE;
}
static BOOL TAB_GetItemRect(HWND hwnd, WPARAM wParam, LPARAM lParam)
{
return TAB_InternalGetItemRect(hwnd, TAB_GetInfoPtr(hwnd), (INT)wParam,
(LPRECT)lParam, (LPRECT)NULL);
}
/******************************************************************************
* TAB_KeyUp
*
* This method is called to handle keyboard input
*/
static LRESULT TAB_KeyUp(
HWND hwnd,
WPARAM keyCode)
{
TAB_INFO* infoPtr = TAB_GetInfoPtr(hwnd);
int newItem = -1;
switch (keyCode)
{
case VK_LEFT:
newItem = infoPtr->uFocus-1;
break;
case VK_RIGHT:
newItem = infoPtr->uFocus+1;
break;
}
/*
* If we changed to a valid item, change the selection
*/
if ( (newItem >= 0) &&
(newItem < infoPtr->uNumItem) &&
(infoPtr->uFocus != newItem) )
{
if (!TAB_SendSimpleNotify(hwnd, TCN_SELCHANGING))
{
infoPtr->iSelected = newItem;
infoPtr->uFocus = newItem;
TAB_SendSimpleNotify(hwnd, TCN_SELCHANGE);
TAB_EnsureSelectionVisible(hwnd, infoPtr);
TAB_InvalidateTabArea(hwnd, infoPtr);
}
}
return 0;
}
/******************************************************************************
* TAB_FocusChanging
*
* This method is called whenever the focus goes in or out of this control
* it is used to update the visual state of the control.
*/
static LRESULT TAB_FocusChanging(
HWND hwnd,
UINT uMsg,
WPARAM wParam,
LPARAM lParam)
{
TAB_INFO *infoPtr = TAB_GetInfoPtr(hwnd);
RECT selectedRect;
BOOL isVisible;
/*
* Get the rectangle for the item.
*/
isVisible = TAB_InternalGetItemRect(hwnd,
infoPtr,
infoPtr->uFocus,
NULL,
&selectedRect);
/*
* If the rectangle is not completely invisible, invalidate that
* portion of the window.
*/
if (isVisible)
{
InvalidateRect(hwnd, &selectedRect, TRUE);
}
/*
* Don't otherwise disturb normal behavior.
*/
return DefWindowProcA (hwnd, uMsg, wParam, lParam);
}
static HWND TAB_InternalHitTest (
HWND hwnd,
TAB_INFO* infoPtr,
POINT pt,
UINT* flags)
{
RECT rect;
int iCount;
for (iCount = 0; iCount < infoPtr->uNumItem; iCount++)
{
TAB_InternalGetItemRect(hwnd,
infoPtr,
iCount,
&rect,
NULL);
if (PtInRect (&rect, pt))
{
*flags = TCHT_ONITEM;
return iCount;
}
}
*flags=TCHT_NOWHERE;
return -1;
}
static LRESULT
TAB_HitTest (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
TAB_INFO *infoPtr = TAB_GetInfoPtr(hwnd);
LPTCHITTESTINFO lptest=(LPTCHITTESTINFO) lParam;
return TAB_InternalHitTest (hwnd, infoPtr,lptest->pt,&lptest->flags);
}
static LRESULT
TAB_LButtonDown (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
TAB_INFO *infoPtr = TAB_GetInfoPtr(hwnd);
POINT pt;
INT newItem,dummy;
if (infoPtr->hwndToolTip)
TAB_RelayEvent (infoPtr->hwndToolTip, hwnd,
WM_LBUTTONDOWN, wParam, lParam);
if (GetWindowLongA(hwnd, GWL_STYLE) & TCS_FOCUSONBUTTONDOWN ) {
SetFocus (hwnd);
}
if (infoPtr->hwndToolTip)
TAB_RelayEvent (infoPtr->hwndToolTip, hwnd,
WM_LBUTTONDOWN, wParam, lParam);
pt.x = (INT)LOWORD(lParam);
pt.y = (INT)HIWORD(lParam);
newItem=TAB_InternalHitTest (hwnd, infoPtr,pt,&dummy);
TRACE("On Tab, item %d\n", newItem);
if ( (newItem!=-1) &&
(infoPtr->iSelected != newItem) )
{
if (TAB_SendSimpleNotify(hwnd, TCN_SELCHANGING)!=TRUE)
{
infoPtr->iSelected = newItem;
infoPtr->uFocus = newItem;
TAB_SendSimpleNotify(hwnd, TCN_SELCHANGE);
TAB_EnsureSelectionVisible(hwnd, infoPtr);
TAB_InvalidateTabArea(hwnd, infoPtr);
}
}
return 0;
}
static LRESULT
TAB_LButtonUp (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
TAB_SendSimpleNotify(hwnd, NM_CLICK);
return 0;
}
static LRESULT
TAB_RButtonDown (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
TAB_SendSimpleNotify(hwnd, NM_RCLICK);
return 0;
}
/******************************************************************************
* TAB_DrawLoneItemInterior
*
* This calls TAB_DrawItemInterior. However, TAB_DrawItemInterior is normally
* called by TAB_DrawItem which is normally called by TAB_Refresh which sets
* up the device context and font. This routine does the same setup but
* only calls TAB_DrawItemInterior for the single specified item.
*/
static void
TAB_DrawLoneItemInterior(HWND hwnd, TAB_INFO* infoPtr, int iItem)
{
HDC hdc = GetDC(hwnd);
HFONT hOldFont = SelectObject(hdc, infoPtr->hFont);
TAB_DrawItemInterior(hwnd, hdc, iItem, NULL);
SelectObject(hdc, hOldFont);
ReleaseDC(hwnd, hdc);
}
/******************************************************************************
* TAB_HotTrackTimerProc
*
* When a mouse-move event causes a tab to be highlighted (hot-tracking), a
* timer is setup so we can check if the mouse is moved out of our window.
* (We don't get an event when the mouse leaves, the mouse-move events just
* stop being delivered to our window and just start being delivered to
* another window.) This function is called when the timer triggers so
* we can check if the mouse has left our window. If so, we un-highlight
* the hot-tracked tab.
*/
static VOID CALLBACK
TAB_HotTrackTimerProc
(
HWND hwnd, /* handle of window for timer messages */
UINT uMsg, /* WM_TIMER message */
UINT idEvent, /* timer identifier */
DWORD dwTime /* current system time */
)
{
TAB_INFO* infoPtr = TAB_GetInfoPtr(hwnd);
if (infoPtr != NULL && infoPtr->iHotTracked >= 0)
{
POINT pt;
/*
** If we can't get the cursor position, or if the cursor is outside our
** window, we un-highlight the hot-tracked tab. Note that the cursor is
** "outside" even if it is within our bounding rect if another window
** overlaps. Note also that the case where the cursor stayed within our
** window but has moved off the hot-tracked tab will be handled by the
** WM_MOUSEMOVE event.
*/
if (!GetCursorPos(&pt) || WindowFromPoint(pt) != hwnd)
{
/* Redraw iHotTracked to look normal */
INT iRedraw = infoPtr->iHotTracked;
infoPtr->iHotTracked = -1;
TAB_DrawLoneItemInterior(hwnd, infoPtr, iRedraw);
/* Kill this timer */
KillTimer(hwnd, TAB_HOTTRACK_TIMER);
}
}
}
/******************************************************************************
* TAB_RecalcHotTrack
*
* If a tab control has the TCS_HOTTRACK style, then the tab under the mouse
* should be highlighted. This function determines which tab in a tab control,
* if any, is under the mouse and records that information. The caller may
* supply output parameters to receive the item number of the tab item which
* was highlighted but isn't any longer and of the tab item which is now
* highlighted but wasn't previously. The caller can use this information to
* selectively redraw those tab items.
*
* If the caller has a mouse position, it can supply it through the pos
* parameter. For example, TAB_MouseMove does this. Otherwise, the caller
* supplies NULL and this function determines the current mouse position
* itself.
*/
static void
TAB_RecalcHotTrack
(
HWND hwnd,
const LPARAM* pos,
int* out_redrawLeave,
int* out_redrawEnter
)
{
TAB_INFO* infoPtr = TAB_GetInfoPtr(hwnd);
int item = -1;
if (out_redrawLeave != NULL)
*out_redrawLeave = -1;
if (out_redrawEnter != NULL)
*out_redrawEnter = -1;
if (GetWindowLongA(hwnd, GWL_STYLE) & TCS_HOTTRACK)
{
POINT pt;
UINT flags;
if (pos == NULL)
{
GetCursorPos(&pt);
ScreenToClient(hwnd, &pt);
}
else
{
pt.x = LOWORD(*pos);
pt.y = HIWORD(*pos);
}
item = TAB_InternalHitTest(hwnd, infoPtr, pt, &flags);
}
if (item != infoPtr->iHotTracked)
{
if (infoPtr->iHotTracked >= 0)
{
/* Mark currently hot-tracked to be redrawn to look normal */
if (out_redrawLeave != NULL)
*out_redrawLeave = infoPtr->iHotTracked;
if (item < 0)
{
/* Kill timer which forces recheck of mouse pos */
KillTimer(hwnd, TAB_HOTTRACK_TIMER);
}
}
else
{
/* Start timer so we recheck mouse pos */
UINT timerID = SetTimer
(
hwnd,
TAB_HOTTRACK_TIMER,
TAB_HOTTRACK_TIMER_INTERVAL,
TAB_HotTrackTimerProc
);
if (timerID == 0)
return; /* Hot tracking not available */
}
infoPtr->iHotTracked = item;
if (item >= 0)
{
/* Mark new hot-tracked to be redrawn to look highlighted */
if (out_redrawEnter != NULL)
*out_redrawEnter = item;
}
}
}
/******************************************************************************
* TAB_MouseMove
*
* Handles the mouse-move event. Updates tooltips. Updates hot-tracking.
*/
static LRESULT
TAB_MouseMove (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
int redrawLeave;
int redrawEnter;
TAB_INFO *infoPtr = TAB_GetInfoPtr(hwnd);
if (infoPtr->hwndToolTip)
TAB_RelayEvent (infoPtr->hwndToolTip, hwnd,
WM_LBUTTONDOWN, wParam, lParam);
/* Determine which tab to highlight. Redraw tabs which change highlight
** status. */
TAB_RecalcHotTrack(hwnd, &lParam, &redrawLeave, &redrawEnter);
if (redrawLeave != -1)
TAB_DrawLoneItemInterior(hwnd, infoPtr, redrawLeave);
if (redrawEnter != -1)
TAB_DrawLoneItemInterior(hwnd, infoPtr, redrawEnter);
return 0;
}
/******************************************************************************
* TAB_AdjustRect
*
* Calculates the tab control's display area given the windows rectangle or
* the window rectangle given the requested display rectangle.
*/
static LRESULT TAB_AdjustRect(
HWND hwnd,
WPARAM fLarger,
LPRECT prc)
{
TAB_INFO *infoPtr = TAB_GetInfoPtr(hwnd);
if (fLarger)
{
/*
* Go from display rectangle
*/
/*
* Add the height of the tabs.
*/
if (GetWindowLongA(hwnd, GWL_STYLE) & TCS_BOTTOM)
prc->bottom += (infoPtr->tabHeight - 2) * (infoPtr->uNumRows + 1) + 2;
else
prc->top -= (infoPtr->tabHeight - 2) * (infoPtr->uNumRows + 1) + 2;
/*
* Inflate the rectangle for the padding
*/
InflateRect(prc, DISPLAY_AREA_PADDINGX, DISPLAY_AREA_PADDINGY);
/*
* Inflate for the border
*/
InflateRect(prc, CONTROL_BORDER_SIZEX, CONTROL_BORDER_SIZEX);
}
else
{
/*
* Go from window rectangle.
*/
/*
* Deflate the rectangle for the border
*/
InflateRect(prc, -CONTROL_BORDER_SIZEX, -CONTROL_BORDER_SIZEX);
/*
* Deflate the rectangle for the padding
*/
InflateRect(prc, -DISPLAY_AREA_PADDINGX, -DISPLAY_AREA_PADDINGY);
/*
* Remove the height of the tabs.
*/
if (GetWindowLongA(hwnd, GWL_STYLE) & TCS_BOTTOM)
prc->bottom -= (infoPtr->tabHeight - 2) * (infoPtr->uNumRows + 1) + 2;
else
prc->top += (infoPtr->tabHeight - 2) * (infoPtr->uNumRows + 1) + 2;
}
return 0;
}
/******************************************************************************
* TAB_OnHScroll
*
* This method will handle the notification from the scroll control and
* perform the scrolling operation on the tab control.
*/
static LRESULT TAB_OnHScroll(
HWND hwnd,
int nScrollCode,
int nPos,
HWND hwndScroll)
{
TAB_INFO *infoPtr = TAB_GetInfoPtr(hwnd);
if(nScrollCode == SB_THUMBPOSITION && nPos != infoPtr->leftmostVisible)
{
if(nPos < infoPtr->leftmostVisible)
infoPtr->leftmostVisible--;
else
infoPtr->leftmostVisible++;
TAB_RecalcHotTrack(hwnd, NULL, NULL, NULL);
TAB_InvalidateTabArea(hwnd, infoPtr);
SendMessageA(infoPtr->hwndUpDown, UDM_SETPOS, 0,
MAKELONG(infoPtr->leftmostVisible, 0));
}
return 0;
}
/******************************************************************************
* TAB_SetupScroling
*
* This method will check the current scrolling state and make sure the
* scrolling control is displayed (or not).
*/
static void TAB_SetupScrolling(
HWND hwnd,
TAB_INFO* infoPtr,
const RECT* clientRect)
{
INT maxRange = 0;
if (infoPtr->needsScrolling)
{
RECT controlPos;
INT vsize, tabwidth;
/*
* Calculate the position of the scroll control.
*/
controlPos.right = clientRect->right;
controlPos.left = controlPos.right - 2*GetSystemMetrics(SM_CXHSCROLL);
if (GetWindowLongA(hwnd, GWL_STYLE) & TCS_BOTTOM)
{
controlPos.top = clientRect->bottom - infoPtr->tabHeight;
controlPos.bottom = controlPos.top + GetSystemMetrics(SM_CYHSCROLL);
}
else
{
controlPos.bottom = clientRect->top + infoPtr->tabHeight;
controlPos.top = controlPos.bottom - GetSystemMetrics(SM_CYHSCROLL);
}
/*
* If we don't have a scroll control yet, we want to create one.
* If we have one, we want to make sure it's positioned right.
*/
if (infoPtr->hwndUpDown==0)
{
/*
* I use a scrollbar since it seems to be more stable than the Updown
* control.
*/
infoPtr->hwndUpDown = CreateWindowA("msctls_updown32",
"",
WS_VISIBLE | WS_CHILD | UDS_HORZ,
controlPos.left, controlPos.top,
controlPos.right - controlPos.left,
controlPos.bottom - controlPos.top,
hwnd,
(HMENU)NULL,
(HINSTANCE)NULL,
NULL);
}
else
{
SetWindowPos(infoPtr->hwndUpDown,
(HWND)NULL,
controlPos.left, controlPos.top,
controlPos.right - controlPos.left,
controlPos.bottom - controlPos.top,
SWP_SHOWWINDOW | SWP_NOZORDER);
}
/* Now calculate upper limit of the updown control range.
* We do this by calculating how many tabs will be offscreen when the
* last tab is visible.
*/
if(infoPtr->uNumItem)
{
vsize = clientRect->right - (controlPos.right - controlPos.left + 1);
maxRange = infoPtr->uNumItem;
tabwidth = infoPtr->items[maxRange-1].rect.right;
for(; maxRange > 0; maxRange--)
{
if(tabwidth - infoPtr->items[maxRange - 1].rect.left > vsize)
break;
}
if(maxRange == infoPtr->uNumItem)
maxRange--;
}
}
else
{
/*
* If we once had a scroll control... hide it.
*/
if (infoPtr->hwndUpDown!=0)
{
ShowWindow(infoPtr->hwndUpDown, SW_HIDE);
}
}
if (infoPtr->hwndUpDown)
SendMessageA(infoPtr->hwndUpDown, UDM_SETRANGE32, 0, maxRange);
}
/******************************************************************************
* TAB_SetItemBounds
*
* This method will calculate the position rectangles of all the items in the
* control. The rectangle calculated starts at 0 for the first item in the
* list and ignores scrolling and selection.
* It also uses the current font to determine the height of the tab row and
* it checks if all the tabs fit in the client area of the window. If they
* dont, a scrolling control is added.
*/
static void TAB_SetItemBounds (HWND hwnd)
{
TAB_INFO* infoPtr = TAB_GetInfoPtr(hwnd);
LONG lStyle = GetWindowLongA(hwnd, GWL_STYLE);
TEXTMETRICA fontMetrics;
INT curItem;
INT curItemLeftPos;
INT curItemRowCount;
HFONT hFont, hOldFont;
HDC hdc;
RECT clientRect;
SIZE size;
/*
* We need to get text information so we need a DC and we need to select
* a font.
*/
hdc = GetDC(hwnd);
hFont = infoPtr->hFont ? infoPtr->hFont : GetStockObject (SYSTEM_FONT);
hOldFont = SelectObject (hdc, hFont);
/*
* We will base the rectangle calculations on the client rectangle
* of the control.
*/
GetClientRect(hwnd, &clientRect);
/*
* The leftmost item will be "0" aligned
*/
curItemLeftPos = 0;
curItemRowCount = 0;
if ( !(lStyle & TCS_FIXEDWIDTH) && !((lStyle & TCS_OWNERDRAWFIXED) && infoPtr->fSizeSet) )
{
int item_height;
int icon_height = 0;
/*
* Use the current font to determine the height of a tab.
*/
GetTextMetricsA(hdc, &fontMetrics);
/*
* Get the icon height
*/
if (infoPtr->himl)
ImageList_GetIconSize(infoPtr->himl, 0, &icon_height);
/*
* Take the highest between font or icon
*/
if (fontMetrics.tmHeight > icon_height)
item_height = fontMetrics.tmHeight;
else
item_height = icon_height;
/*
* Make sure there is enough space for the letters + icon + growing the
* selected item + extra space for the selected item.
*/
infoPtr->tabHeight = item_height + 2*VERTICAL_ITEM_PADDING +
SELECTED_TAB_OFFSET;
}
for (curItem = 0; curItem < infoPtr->uNumItem; curItem++)
{
/*
* Set the leftmost position of the tab.
*/
infoPtr->items[curItem].rect.left = curItemLeftPos;
if ( (lStyle & TCS_FIXEDWIDTH) || ((lStyle & TCS_OWNERDRAWFIXED) && infoPtr->fSizeSet))
{
infoPtr->items[curItem].rect.right = infoPtr->items[curItem].rect.left +
infoPtr->tabWidth +
2*HORIZONTAL_ITEM_PADDING;
}
else
{
int icon_width = 0;
int num = 2;
/*
* Calculate how wide the tab is depending on the text it contains
*/
GetTextExtentPoint32A(hdc, infoPtr->items[curItem].pszText,
lstrlenA(infoPtr->items[curItem].pszText), &size);
/*
* Add the icon width
*/
if (infoPtr->himl)
{
ImageList_GetIconSize(infoPtr->himl, &icon_width, 0);
num++;
}
infoPtr->items[curItem].rect.right = infoPtr->items[curItem].rect.left +
size.cx + icon_width +
num*HORIZONTAL_ITEM_PADDING;
}
/*
* Check if this is a multiline tab control and if so
* check to see if we should wrap the tabs
*
* Because we are going to arange all these tabs evenly
* really we are basically just counting rows at this point
*
*/
if ((lStyle & TCS_MULTILINE)&&
(infoPtr->items[curItem].rect.right > clientRect.right))
{
infoPtr->items[curItem].rect.right -=
infoPtr->items[curItem].rect.left;
infoPtr->items[curItem].rect.left = 0;
curItemRowCount ++;
}
infoPtr->items[curItem].rect.bottom = 0;
infoPtr->items[curItem].rect.top = curItemRowCount;
TRACE("TextSize: %i\n ", size.cx);
TRACE("Rect: T %i, L %i, B %i, R %i\n",
infoPtr->items[curItem].rect.top,
infoPtr->items[curItem].rect.left,
infoPtr->items[curItem].rect.bottom,
infoPtr->items[curItem].rect.right);
/*
* The leftmost position of the next item is the rightmost position
* of this one.
*/
if (lStyle & TCS_BUTTONS)
curItemLeftPos = infoPtr->items[curItem].rect.right + BUTTON_SPACINGX;
else
curItemLeftPos = infoPtr->items[curItem].rect.right;
}
if (!(lStyle & TCS_MULTILINE))
{
/*
* Check if we need a scrolling control.
*/
infoPtr->needsScrolling = (curItemLeftPos + (2*SELECTED_TAB_OFFSET) >
clientRect.right);
/* Don't need scrolling, then update infoPtr->leftmostVisible */
if(!infoPtr->needsScrolling)
infoPtr->leftmostVisible = 0;
TAB_SetupScrolling(hwnd, infoPtr, &clientRect);
}
/*
* Set the number of rows
*/
infoPtr->uNumRows = curItemRowCount;
if ((lStyle & TCS_MULTILINE)&&(infoPtr->uNumItem > 0))
{
INT widthDiff,remainder;
INT tabPerRow,remTab;
INT iRow,iItm;
INT iIndexStart=0,iIndexEnd=0, iCount=0;
/*
* Ok Microsoft trys to even out the rows. place the same
* number of tabs in each row. So lets give that a shot
*
*/
tabPerRow = infoPtr->uNumItem / (infoPtr->uNumRows + 1);
remTab = infoPtr->uNumItem % (infoPtr->uNumRows + 1);
for (iItm=0,iRow=0,iCount=0,curItemLeftPos=0;
iItm<infoPtr->uNumItem;
iItm++,iCount++)
{
if (iCount >= ((iRow<remTab)?tabPerRow+1:tabPerRow))
{
iRow++;
curItemLeftPos = 0;
iCount = 0;
}
/*
* normalize the current rect
*/
infoPtr->items[iItm].rect.right -=
infoPtr->items[iItm].rect.left;
infoPtr->items[iItm].rect.left = 0;
infoPtr->items[iItm].rect.top = iRow;
infoPtr->items[iItm].rect.left +=curItemLeftPos;
infoPtr->items[iItm].rect.right +=curItemLeftPos;
if (lStyle & TCS_BUTTONS)
curItemLeftPos = infoPtr->items[iItm].rect.right +
BUTTON_SPACINGX;
else
curItemLeftPos = infoPtr->items[iItm].rect.right;
}
/*
* Justify the rows
*
*/
{
while(iIndexStart < infoPtr->uNumItem)
{
/*
* find the indexs of the row
*/
for (iIndexEnd=iIndexStart;
(iIndexEnd < infoPtr->uNumItem) &&
(infoPtr->items[iIndexEnd].rect.top ==
infoPtr->items[iIndexStart].rect.top) ;
iIndexEnd++)
/* intentionaly blank */;
/*
* we need to justify these tabs so they fill the whole given
* client area
*
*/
widthDiff = clientRect.right - (2*SELECTED_TAB_OFFSET) -
infoPtr->items[iIndexEnd-1].rect.right;
iCount = iIndexEnd-iIndexStart;
if (iCount>1)
{
INT iIndex;
remainder = widthDiff % iCount;
widthDiff = widthDiff / iCount;
for (iIndex=iIndexStart,iCount=0; iIndex < iIndexEnd;
iIndex++,iCount++)
{
infoPtr->items[iIndex].rect.left +=iCount*widthDiff;
infoPtr->items[iIndex].rect.right +=(iCount+1)*widthDiff;
}
infoPtr->items[iIndex-1].rect.right += remainder;
}
iIndexStart=iIndexEnd;
}
}
}
TAB_EnsureSelectionVisible(hwnd,infoPtr);
TAB_RecalcHotTrack(hwnd, NULL, NULL, NULL);
/*
* Cleanup
*/
SelectObject (hdc, hOldFont);
ReleaseDC (hwnd, hdc);
}
/******************************************************************************
* TAB_DrawItemInterior
*
* This method is used to draw the interior (text and icon) of a single tab
* into the tab control.
*/
static void
TAB_DrawItemInterior
(
HWND hwnd,
HDC hdc,
INT iItem,
RECT* drawRect
)
{
TAB_INFO* infoPtr = TAB_GetInfoPtr(hwnd);
LONG lStyle = GetWindowLongA(hwnd, GWL_STYLE);
RECT localRect;
HPEN htextPen = GetSysColorPen (COLOR_BTNTEXT);
HPEN holdPen;
INT oldBkMode;
if (drawRect == NULL)
{
BOOL isVisible;
RECT itemRect;
RECT selectedRect;
/*
* Get the rectangle for the item.
*/
isVisible = TAB_InternalGetItemRect
(
hwnd,
infoPtr,
iItem,
&itemRect,
&selectedRect
);
if (!isVisible)
return;
/*
* Make sure drawRect points to something valid; simplifies code.
*/
drawRect = &localRect;
/*
* This logic copied from the part of TAB_DrawItem which draws
* the tab background. It's important to keep it in sync. I
* would have liked to avoid code duplication, but couldn't figure
* out how without making spaghetti of TAB_DrawItem.
*/
if (lStyle & TCS_BUTTONS)
{
*drawRect = itemRect;
if (iItem == infoPtr->iSelected)
{
drawRect->right--;
drawRect->bottom--;
}
}
else
{
if (iItem == infoPtr->iSelected)
*drawRect = selectedRect;
else
*drawRect = itemRect;
drawRect->right--;
drawRect->bottom--;
}
}
/*
* Text pen
*/
holdPen = SelectObject(hdc, htextPen);
oldBkMode = SetBkMode(hdc, TRANSPARENT);
SetTextColor
(
hdc,
GetSysColor
(
(iItem == infoPtr->iHotTracked) ? COLOR_HIGHLIGHT : COLOR_BTNTEXT
)
);
/*
* Deflate the rectangle to acount for the padding
*/
InflateRect(drawRect, -HORIZONTAL_ITEM_PADDING, -VERTICAL_ITEM_PADDING);
/*
* if owner draw, tell the owner to draw
*/
if ( (lStyle & TCS_OWNERDRAWFIXED) && GetParent(hwnd) )
{
DRAWITEMSTRUCT dis;
UINT id;
/*
* get the control id
*/
id = GetWindowLongA( hwnd, GWL_ID );
/*
* put together the DRAWITEMSTRUCT
*/
dis.CtlType = ODT_TAB;
dis.CtlID = id;
dis.itemID = iItem;
dis.itemAction = ODA_DRAWENTIRE;
if ( iItem == infoPtr->iSelected )
dis.itemState = ODS_SELECTED;
else
dis.itemState = 0;
dis.hwndItem = hwnd; /* */
dis.hDC = hdc;
dis.rcItem = *drawRect; /* */
dis.itemData = infoPtr->items[iItem].lParam;
/*
* send the draw message
*/
SendMessageA( GetParent(hwnd), WM_DRAWITEM, (WPARAM)id, (LPARAM)&dis );
}
else
{
UINT uHorizAlign;
/*
* If not owner draw, then do the drawing ourselves.
*
* Draw the icon.
*/
if (infoPtr->himl && (infoPtr->items[iItem].mask & TCIF_IMAGE))
{
INT cx;
INT cy;
ImageList_Draw
(
infoPtr->himl,
infoPtr->items[iItem].iImage,
hdc,
drawRect->left,
drawRect->top + 1,
ILD_NORMAL
);
ImageList_GetIconSize(infoPtr->himl, &cx, &cy);
drawRect->left += (cx + HORIZONTAL_ITEM_PADDING);
}
/*
* Draw the text;
*/
if (lStyle & TCS_RIGHTJUSTIFY)
uHorizAlign = DT_CENTER;
else
uHorizAlign = DT_LEFT;
DrawTextA
(
hdc,
infoPtr->items[iItem].pszText,
lstrlenA(infoPtr->items[iItem].pszText),
drawRect,
uHorizAlign | DT_SINGLELINE | DT_VCENTER
);
}
/*
* Cleanup
*/
SetBkMode(hdc, oldBkMode);
SelectObject(hdc, holdPen);
}
/******************************************************************************
* TAB_DrawItem
*
* This method is used to draw a single tab into the tab control.
*/
static void TAB_DrawItem(
HWND hwnd,
HDC hdc,
INT iItem)
{
TAB_INFO *infoPtr = TAB_GetInfoPtr(hwnd);
LONG lStyle = GetWindowLongA(hwnd, GWL_STYLE);
RECT itemRect;
RECT selectedRect;
BOOL isVisible;
RECT r;
/*
* Get the rectangle for the item.
*/
isVisible = TAB_InternalGetItemRect(hwnd,
infoPtr,
iItem,
&itemRect,
&selectedRect);
if (isVisible)
{
HBRUSH hbr = CreateSolidBrush (GetSysColor(COLOR_BTNFACE));
HPEN hwPen = GetSysColorPen (COLOR_3DHILIGHT);
HPEN hbPen = GetSysColorPen (COLOR_BTNSHADOW);
HPEN hfocusPen = CreatePen(PS_DOT, 1, GetSysColor(COLOR_BTNTEXT));
HPEN holdPen;
INT oldBkMode;
BOOL deleteBrush = TRUE;
if (lStyle & TCS_BUTTONS)
{
/*
* Get item rectangle.
*/
r = itemRect;
holdPen = SelectObject (hdc, hwPen);
if (iItem == infoPtr->iSelected)
{
/*
* Background color.
*/
if (!((lStyle & TCS_OWNERDRAWFIXED) && infoPtr->fSizeSet))
{
COLORREF bk = GetSysColor(COLOR_3DHILIGHT);
DeleteObject(hbr);
hbr = GetSysColorBrush(COLOR_SCROLLBAR);
SetTextColor(hdc, GetSysColor(COLOR_3DFACE));
SetBkColor(hdc, bk);
/* if COLOR_WINDOW happens to be the same as COLOR_3DHILIGHT
* we better use 0x55aa bitmap brush to make scrollbar's background
* look different from the window background.
*/
if (bk == GetSysColor(COLOR_WINDOW))
hbr = CACHE_GetPattern55AABrush();
deleteBrush = FALSE;
}
/*
* Erase the background.
*/
FillRect(hdc, &r, hbr);
/*
* Draw the tab now.
* The rectangles calculated exclude the right and bottom
* borders of the rectangle. To simply the following code, those
* borders are shaved-off beforehand.
*/
r.right--;
r.bottom--;
/* highlight */
MoveToEx (hdc, r.left, r.bottom, NULL);
LineTo (hdc, r.right, r.bottom);
LineTo (hdc, r.right, r.top);
/* shadow */
SelectObject(hdc, hbPen);
LineTo (hdc, r.left, r.top);
LineTo (hdc, r.left, r.bottom);
}
else
{
/*
* Erase the background.
*/
FillRect(hdc, &r, hbr);
/* highlight */
MoveToEx (hdc, r.left, r.bottom, NULL);
LineTo (hdc, r.left, r.top);
LineTo (hdc, r.right, r.top);
/* shadow */
SelectObject(hdc, hbPen);
LineTo (hdc, r.right, r.bottom);
LineTo (hdc, r.left, r.bottom);
}
}
else
{
/*
* Background color.
*/
DeleteObject(hbr);
hbr = CreateSolidBrush(GetSysColor(COLOR_BTNFACE));
/*
* We draw a rectangle of different sizes depending on the selection
* state.
*/
if (iItem == infoPtr->iSelected)
r = selectedRect;
else
r = itemRect;
/*
* Erase the background.
* This is necessary when drawing the selected item since it is larger
* than the others, it might overlap with stuff already drawn by the
* other tabs
*/
FillRect(hdc, &r, hbr);
/*
* Draw the tab now.
* The rectangles calculated exclude the right and bottom
* borders of the rectangle. To simply the following code, those
* borders are shaved-off beforehand.
*/
r.right--;
r.bottom--;
holdPen = SelectObject (hdc, hwPen);
if (lStyle & TCS_BOTTOM)
{
/* highlight */
MoveToEx (hdc, r.left, r.top, NULL);
LineTo (hdc, r.left, r.bottom - ROUND_CORNER_SIZE);
LineTo (hdc, r.left + ROUND_CORNER_SIZE, r.bottom);
/* shadow */
SelectObject(hdc, hbPen);
LineTo (hdc, r.right - ROUND_CORNER_SIZE, r.bottom);
LineTo (hdc, r.right, r.bottom - ROUND_CORNER_SIZE);
LineTo (hdc, r.right, r.top);
}
else
{
/* highlight */
MoveToEx (hdc, r.left, r.bottom, NULL);
LineTo (hdc, r.left, r.top + ROUND_CORNER_SIZE);
LineTo (hdc, r.left + ROUND_CORNER_SIZE, r.top);
LineTo (hdc, r.right - ROUND_CORNER_SIZE, r.top);
/* shadow */
SelectObject(hdc, hbPen);
LineTo (hdc, r.right, r.top + ROUND_CORNER_SIZE);
LineTo (hdc, r.right, r.bottom);
}
}
oldBkMode = SetBkMode(hdc, TRANSPARENT);
/* This modifies r to be the text rectangle. */
TAB_DrawItemInterior(hwnd, hdc, iItem, &r);
/*
* Draw the focus rectangle
*/
if (((lStyle & TCS_FOCUSNEVER) == 0) &&
(GetFocus() == hwnd) &&
(iItem == infoPtr->uFocus) )
{
InflateRect(&r, FOCUS_RECT_HOFFSET, FOCUS_RECT_VOFFSET);
SelectObject(hdc, hfocusPen);
MoveToEx (hdc, r.left, r.top, NULL);
LineTo (hdc, r.right-1, r.top);
LineTo (hdc, r.right-1, r.bottom -1);
LineTo (hdc, r.left, r.bottom -1);
LineTo (hdc, r.left, r.top);
}
/*
* Cleanup
*/
SetBkMode(hdc, oldBkMode);
SelectObject(hdc, holdPen);
DeleteObject(hfocusPen);
if (deleteBrush) DeleteObject(hbr);
}
}
/******************************************************************************
* TAB_DrawBorder
*
* This method is used to draw the raised border around the tab control
* "content" area.
*/
static void TAB_DrawBorder (HWND hwnd, HDC hdc)
{
TAB_INFO *infoPtr = TAB_GetInfoPtr(hwnd);
HPEN htmPen;
HPEN hwPen = GetSysColorPen (COLOR_3DHILIGHT);
HPEN hbPen = GetSysColorPen (COLOR_3DDKSHADOW);
HPEN hShade = GetSysColorPen (COLOR_BTNSHADOW);
RECT rect;
GetClientRect (hwnd, &rect);
/*
* Adjust for the style
*/
if (GetWindowLongA(hwnd, GWL_STYLE) & TCS_BOTTOM)
{
rect.bottom -= (infoPtr->tabHeight - 2) * (infoPtr->uNumRows + 1) + 2;
}
else
{
rect.top += (infoPtr->tabHeight - 2) * (infoPtr->uNumRows + 1) + 2;
}
/*
* Shave-off the right and bottom margins (exluded in the
* rect)
*/
rect.right--;
rect.bottom--;
/* highlight */
htmPen = SelectObject (hdc, hwPen);
MoveToEx (hdc, rect.left, rect.bottom, NULL);
LineTo (hdc, rect.left, rect.top);
LineTo (hdc, rect.right, rect.top);
/* Dark Shadow */
SelectObject (hdc, hbPen);
LineTo (hdc, rect.right, rect.bottom );
LineTo (hdc, rect.left, rect.bottom);
/* shade */
SelectObject (hdc, hShade );
MoveToEx (hdc, rect.right-1, rect.top, NULL);
LineTo (hdc, rect.right-1, rect.bottom-1);
LineTo (hdc, rect.left, rect.bottom-1);
SelectObject(hdc, htmPen);
}
/******************************************************************************
* TAB_Refresh
*
* This method repaints the tab control..
*/
static void TAB_Refresh (HWND hwnd, HDC hdc)
{
TAB_INFO *infoPtr = TAB_GetInfoPtr(hwnd);
HFONT hOldFont;
INT i;
if (!infoPtr->DoRedraw)
return;
hOldFont = SelectObject (hdc, infoPtr->hFont);
if (GetWindowLongA(hwnd, GWL_STYLE) & TCS_BUTTONS)
{
for (i = 0; i < infoPtr->uNumItem; i++)
{
TAB_DrawItem (hwnd, hdc, i);
}
}
else
{
/*
* Draw all the non selected item first.
*/
for (i = 0; i < infoPtr->uNumItem; i++)
{
if (i != infoPtr->iSelected)
TAB_DrawItem (hwnd, hdc, i);
}
/*
* Now, draw the border, draw it before the selected item
* since the selected item overwrites part of the border.
*/
TAB_DrawBorder (hwnd, hdc);
/*
* Then, draw the selected item
*/
TAB_DrawItem (hwnd, hdc, infoPtr->iSelected);
/*
* If we haven't set the current focus yet, set it now.
* Only happens when we first paint the tab controls.
*/
if (infoPtr->uFocus == -1)
TAB_SetCurFocus(hwnd, infoPtr->iSelected);
}
SelectObject (hdc, hOldFont);
}
static LRESULT
TAB_SetRedraw (HWND hwnd, WPARAM wParam)
{
TAB_INFO *infoPtr = TAB_GetInfoPtr(hwnd);
infoPtr->DoRedraw=(BOOL) wParam;
return 0;
}
static LRESULT TAB_EraseBackground(
HWND hwnd,
HDC givenDC)
{
HDC hdc;
RECT clientRect;
HBRUSH brush = CreateSolidBrush(GetSysColor(COLOR_BTNFACE));
hdc = givenDC ? givenDC : GetDC(hwnd);
GetClientRect(hwnd, &clientRect);
FillRect(hdc, &clientRect, brush);
if (givenDC==0)
ReleaseDC(hwnd, hdc);
DeleteObject(brush);
return 0;
}
/******************************************************************************
* TAB_EnsureSelectionVisible
*
* This method will make sure that the current selection is completely
* visible by scrolling until it is.
*/
static void TAB_EnsureSelectionVisible(
HWND hwnd,
TAB_INFO* infoPtr)
{
INT iSelected = infoPtr->iSelected;
INT iOrigLeftmostVisible = infoPtr->leftmostVisible;
/*
* set the items row to the bottommost row or topmost row depending on
* style
*/
if (infoPtr->uNumRows > 0)
{
INT newselected=infoPtr->items[iSelected].rect.top;
INT iTargetRow;
LONG lStyle = GetWindowLongA(hwnd, GWL_STYLE);
if (lStyle & TCS_BOTTOM)
iTargetRow = 0;
else
iTargetRow = infoPtr->uNumRows;
if (newselected != iTargetRow)
{
INT i;
for (i=0; i < infoPtr->uNumItem; i++)
if (infoPtr->items[i].rect.top == newselected )
infoPtr->items[i].rect.top = iTargetRow;
else if (lStyle&TCS_BOTTOM)
{
if (infoPtr->items[i].rect.top < newselected)
infoPtr->items[i].rect.top+=1;
}
else
{
if (infoPtr->items[i].rect.top > newselected)
infoPtr->items[i].rect.top-=1;
}
TAB_RecalcHotTrack(hwnd, NULL, NULL, NULL);
}
}
/*
* Do the trivial cases first.
*/
if ( (!infoPtr->needsScrolling) ||
(infoPtr->hwndUpDown==0) )
return;
if (infoPtr->leftmostVisible >= iSelected)
{
infoPtr->leftmostVisible = iSelected;
}
else
{
RECT r;
INT width, i;
/*
* Calculate the part of the client area that is visible.
*/
GetClientRect(hwnd, &r);
width = r.right;
GetClientRect(infoPtr->hwndUpDown, &r);
width -= r.right;
if ((infoPtr->items[iSelected].rect.right -
infoPtr->items[iSelected].rect.left) >= width )
{
/* Special case: width of selected item is greater than visible
* part of control.
*/
infoPtr->leftmostVisible = iSelected;
}
else
{
for (i = infoPtr->leftmostVisible; i < infoPtr->uNumItem; i++)
{
if ((infoPtr->items[iSelected].rect.right -
infoPtr->items[i].rect.left) < width)
break;
}
infoPtr->leftmostVisible = i;
}
}
if (infoPtr->leftmostVisible != iOrigLeftmostVisible)
TAB_RecalcHotTrack(hwnd, NULL, NULL, NULL);
SendMessageA(infoPtr->hwndUpDown, UDM_SETPOS, 0,
MAKELONG(infoPtr->leftmostVisible, 0));
}
/******************************************************************************
* TAB_InvalidateTabArea
*
* This method will invalidate the portion of the control that contains the
* tabs. It is called when the state of the control changes and needs
* to be redisplayed
*/
static void TAB_InvalidateTabArea(
HWND hwnd,
TAB_INFO* infoPtr)
{
RECT clientRect;
GetClientRect(hwnd, &clientRect);
if (GetWindowLongA(hwnd, GWL_STYLE) & TCS_BOTTOM)
{
clientRect.top = clientRect.bottom - (infoPtr->tabHeight *
(infoPtr->uNumRows + 1) + 3);
}
else
{
clientRect.bottom = clientRect.top + (infoPtr->tabHeight *
(infoPtr->uNumRows + 1) + 1);
}
InvalidateRect(hwnd, &clientRect, TRUE);
}
static LRESULT
TAB_Paint (HWND hwnd, WPARAM wParam)
{
HDC hdc;
PAINTSTRUCT ps;
hdc = wParam== 0 ? BeginPaint (hwnd, &ps) : (HDC)wParam;
TAB_Refresh (hwnd, hdc);
if(!wParam)
EndPaint (hwnd, &ps);
return 0;
}
static LRESULT
TAB_InsertItem (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
TAB_INFO *infoPtr = TAB_GetInfoPtr(hwnd);
TCITEMA *pti;
INT iItem, len;
RECT rect;
GetClientRect (hwnd, &rect);
TRACE("Rect: %x T %i, L %i, B %i, R %i\n", hwnd,
rect.top, rect.left, rect.bottom, rect.right);
pti = (TCITEMA *)lParam;
iItem = (INT)wParam;
if (iItem < 0) return -1;
if (iItem > infoPtr->uNumItem)
iItem = infoPtr->uNumItem;
if (infoPtr->uNumItem == 0) {
infoPtr->items = COMCTL32_Alloc (sizeof (TAB_ITEM));
infoPtr->uNumItem++;
infoPtr->iSelected = 0;
}
else {
TAB_ITEM *oldItems = infoPtr->items;
infoPtr->uNumItem++;
infoPtr->items = COMCTL32_Alloc (sizeof (TAB_ITEM) * infoPtr->uNumItem);
/* pre insert copy */
if (iItem > 0) {
memcpy (&infoPtr->items[0], &oldItems[0],
iItem * sizeof(TAB_ITEM));
}
/* post insert copy */
if (iItem < infoPtr->uNumItem - 1) {
memcpy (&infoPtr->items[iItem+1], &oldItems[iItem],
(infoPtr->uNumItem - iItem - 1) * sizeof(TAB_ITEM));
}
if (iItem <= infoPtr->iSelected)
infoPtr->iSelected++;
COMCTL32_Free (oldItems);
}
infoPtr->items[iItem].mask = pti->mask;
if (pti->mask & TCIF_TEXT) {
len = lstrlenA (pti->pszText);
infoPtr->items[iItem].pszText = COMCTL32_Alloc (len+1);
lstrcpyA (infoPtr->items[iItem].pszText, pti->pszText);
infoPtr->items[iItem].cchTextMax = pti->cchTextMax;
}
if (pti->mask & TCIF_IMAGE)
infoPtr->items[iItem].iImage = pti->iImage;
if (pti->mask & TCIF_PARAM)
infoPtr->items[iItem].lParam = pti->lParam;
TAB_SetItemBounds(hwnd);
TAB_InvalidateTabArea(hwnd, infoPtr);
TRACE("[%04x]: added item %d '%s'\n",
hwnd, iItem, infoPtr->items[iItem].pszText);
return iItem;
}
static LRESULT
TAB_SetItemSize (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
TAB_INFO *infoPtr = TAB_GetInfoPtr(hwnd);
LONG lStyle = GetWindowLongA(hwnd, GWL_STYLE);
LONG lResult = 0;
if ((lStyle & TCS_FIXEDWIDTH) || (lStyle & TCS_OWNERDRAWFIXED))
{
lResult = MAKELONG(infoPtr->tabWidth, infoPtr->tabHeight);
infoPtr->tabWidth = (INT)LOWORD(lParam);
infoPtr->tabHeight = (INT)HIWORD(lParam);
}
infoPtr->fSizeSet = TRUE;
return lResult;
}
static LRESULT
TAB_SetItemA (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
TAB_INFO *infoPtr = TAB_GetInfoPtr(hwnd);
TCITEMA *tabItem;
TAB_ITEM *wineItem;
INT iItem,len;
iItem=(INT) wParam;
tabItem=(LPTCITEMA ) lParam;
TRACE("%d %p\n",iItem, tabItem);
if ((iItem<0) || (iItem>=infoPtr->uNumItem)) return FALSE;
wineItem=& infoPtr->items[iItem];
if (tabItem->mask & TCIF_IMAGE)
wineItem->iImage=tabItem->iImage;
if (tabItem->mask & TCIF_PARAM)
wineItem->lParam=tabItem->lParam;
if (tabItem->mask & TCIF_RTLREADING)
FIXME("TCIF_RTLREADING\n");
if (tabItem->mask & TCIF_STATE)
wineItem->dwState=tabItem->dwState;
if (tabItem->mask & TCIF_TEXT) {
len=lstrlenA (tabItem->pszText);
if (len>wineItem->cchTextMax)
wineItem->pszText= COMCTL32_ReAlloc (wineItem->pszText, len+1);
lstrcpyA (wineItem->pszText, tabItem->pszText);
}
/*
* Update and repaint tabs.
*/
TAB_SetItemBounds(hwnd);
TAB_InvalidateTabArea(hwnd,infoPtr);
return TRUE;
}
static LRESULT
TAB_GetItemCount (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
TAB_INFO *infoPtr = TAB_GetInfoPtr(hwnd);
return infoPtr->uNumItem;
}
static LRESULT
TAB_GetItemA (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
TAB_INFO *infoPtr = TAB_GetInfoPtr(hwnd);
TCITEMA *tabItem;
TAB_ITEM *wineItem;
INT iItem;
iItem=(INT) wParam;
tabItem=(LPTCITEMA) lParam;
TRACE("\n");
if ((iItem<0) || (iItem>=infoPtr->uNumItem)) return FALSE;
wineItem=& infoPtr->items[iItem];
if (tabItem->mask & TCIF_IMAGE)
tabItem->iImage=wineItem->iImage;
if (tabItem->mask & TCIF_PARAM)
tabItem->lParam=wineItem->lParam;
if (tabItem->mask & TCIF_RTLREADING)
FIXME("TCIF_RTLREADING\n");
if (tabItem->mask & TCIF_STATE)
tabItem->dwState=wineItem->dwState;
if (tabItem->mask & TCIF_TEXT)
lstrcpynA (tabItem->pszText, wineItem->pszText, tabItem->cchTextMax);
return TRUE;
}
static LRESULT
TAB_DeleteItem (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
TAB_INFO *infoPtr = TAB_GetInfoPtr(hwnd);
INT iItem = (INT) wParam;
BOOL bResult = FALSE;
if ((iItem >= 0) && (iItem < infoPtr->uNumItem))
{
TAB_ITEM *oldItems = infoPtr->items;
infoPtr->uNumItem--;
infoPtr->items = COMCTL32_Alloc(sizeof (TAB_ITEM) * infoPtr->uNumItem);
if (iItem > 0)
memcpy(&infoPtr->items[0], &oldItems[0], iItem * sizeof(TAB_ITEM));
if (iItem < infoPtr->uNumItem)
memcpy(&infoPtr->items[iItem], &oldItems[iItem + 1],
(infoPtr->uNumItem - iItem) * sizeof(TAB_ITEM));
COMCTL32_Free (oldItems);
/*
* Readjust the selected index.
*/
if ((iItem == infoPtr->iSelected) && (iItem > 0))
infoPtr->iSelected--;
if (iItem < infoPtr->iSelected)
infoPtr->iSelected--;
if (infoPtr->uNumItem == 0)
infoPtr->iSelected = -1;
/*
* Reposition and repaint tabs.
*/
TAB_SetItemBounds(hwnd);
TAB_InvalidateTabArea(hwnd,infoPtr);
bResult = TRUE;
}
return bResult;
}
static LRESULT
TAB_DeleteAllItems (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
TAB_INFO *infoPtr = TAB_GetInfoPtr(hwnd);
COMCTL32_Free (infoPtr->items);
infoPtr->uNumItem = 0;
infoPtr->iSelected = -1;
if (infoPtr->iHotTracked >= 0)
KillTimer(hwnd, TAB_HOTTRACK_TIMER);
infoPtr->iHotTracked = -1;
TAB_SetItemBounds(hwnd);
TAB_InvalidateTabArea(hwnd,infoPtr);
return TRUE;
}
static LRESULT
TAB_GetFont (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
TAB_INFO *infoPtr = TAB_GetInfoPtr(hwnd);
TRACE("\n");
return (LRESULT)infoPtr->hFont;
}
static LRESULT
TAB_SetFont (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
TAB_INFO *infoPtr = TAB_GetInfoPtr(hwnd);
TRACE("%x %lx\n",wParam, lParam);
infoPtr->hFont = (HFONT)wParam;
TAB_SetItemBounds(hwnd);
TAB_InvalidateTabArea(hwnd, infoPtr);
return 0;
}
static LRESULT
TAB_GetImageList (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
TAB_INFO *infoPtr = TAB_GetInfoPtr(hwnd);
TRACE("\n");
return (LRESULT)infoPtr->himl;
}
static LRESULT
TAB_SetImageList (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
TAB_INFO *infoPtr = TAB_GetInfoPtr(hwnd);
HIMAGELIST himlPrev;
TRACE("\n");
himlPrev = infoPtr->himl;
infoPtr->himl= (HIMAGELIST)lParam;
return (LRESULT)himlPrev;
}
static LRESULT
TAB_Size (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
/* I'm not really sure what the following code was meant to do.
This is what it is doing:
When WM_SIZE is sent with SIZE_RESTORED, the control
gets positioned in the top left corner.
RECT parent_rect;
HWND parent;
UINT uPosFlags,cx,cy;
uPosFlags=0;
if (!wParam) {
parent = GetParent (hwnd);
GetClientRect(parent, &parent_rect);
cx=LOWORD (lParam);
cy=HIWORD (lParam);
if (GetWindowLongA(hwnd, GWL_STYLE) & CCS_NORESIZE)
uPosFlags |= (SWP_NOSIZE | SWP_NOMOVE);
SetWindowPos (hwnd, 0, parent_rect.left, parent_rect.top,
cx, cy, uPosFlags | SWP_NOZORDER);
} else {
FIXME (tab,"WM_SIZE flag %x %lx not handled\n", wParam, lParam);
} */
/*
* Recompute the size/position of the tabs.
*/
TAB_SetItemBounds (hwnd);
/*
* Force a repaint of the control.
*/
InvalidateRect(hwnd, NULL, TRUE);
return 0;
}
static LRESULT
TAB_Create (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
TAB_INFO *infoPtr;
TEXTMETRICA fontMetrics;
HDC hdc;
HFONT hOldFont;
DWORD dwStyle;
infoPtr = (TAB_INFO *)COMCTL32_Alloc (sizeof(TAB_INFO));
SetWindowLongA(hwnd, 0, (DWORD)infoPtr);
infoPtr->uNumItem = 0;
infoPtr->uNumRows = 0;
infoPtr->hFont = 0;
infoPtr->items = 0;
infoPtr->hcurArrow = LoadCursorA (0, IDC_ARROWA);
infoPtr->iSelected = -1;
infoPtr->iHotTracked = -1;
infoPtr->uFocus = -1;
infoPtr->hwndToolTip = 0;
infoPtr->DoRedraw = TRUE;
infoPtr->needsScrolling = FALSE;
infoPtr->hwndUpDown = 0;
infoPtr->leftmostVisible = 0;
infoPtr->fSizeSet = FALSE;
TRACE("Created tab control, hwnd [%04x]\n", hwnd);
/* The tab control always has the WS_CLIPSIBLINGS style. Even
if you don't specify in CreateWindow. This is necesary in
order for paint to work correctly. This follows windows behaviour. */
dwStyle = GetWindowLongA(hwnd, GWL_STYLE);
SetWindowLongA(hwnd, GWL_STYLE, dwStyle|WS_CLIPSIBLINGS);
if (dwStyle & TCS_TOOLTIPS) {
/* Create tooltip control */
infoPtr->hwndToolTip =
CreateWindowExA (0, TOOLTIPS_CLASSA, NULL, 0,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
hwnd, 0, 0, 0);
/* Send NM_TOOLTIPSCREATED notification */
if (infoPtr->hwndToolTip) {
NMTOOLTIPSCREATED nmttc;
nmttc.hdr.hwndFrom = hwnd;
nmttc.hdr.idFrom = GetWindowLongA(hwnd, GWL_ID);
nmttc.hdr.code = NM_TOOLTIPSCREATED;
nmttc.hwndToolTips = infoPtr->hwndToolTip;
SendMessageA (GetParent (hwnd), WM_NOTIFY,
(WPARAM)GetWindowLongA(hwnd, GWL_ID), (LPARAM)&nmttc);
}
}
/*
* We need to get text information so we need a DC and we need to select
* a font.
*/
hdc = GetDC(hwnd);
hOldFont = SelectObject (hdc, GetStockObject (SYSTEM_FONT));
/*
* Use the system font to determine the initial height of a tab.
*/
GetTextMetricsA(hdc, &fontMetrics);
/*
* Make sure there is enough space for the letters + growing the
* selected item + extra space for the selected item.
*/
infoPtr->tabHeight = fontMetrics.tmHeight + 2*VERTICAL_ITEM_PADDING +
SELECTED_TAB_OFFSET;
/*
* Initialize the width of a tab.
*/
infoPtr->tabWidth = DEFAULT_TAB_WIDTH;
SelectObject (hdc, hOldFont);
ReleaseDC(hwnd, hdc);
return 0;
}
static LRESULT
TAB_Destroy (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
TAB_INFO *infoPtr = TAB_GetInfoPtr(hwnd);
INT iItem;
if (!infoPtr)
return 0;
if (infoPtr->items) {
for (iItem = 0; iItem < infoPtr->uNumItem; iItem++) {
if (infoPtr->items[iItem].pszText)
COMCTL32_Free (infoPtr->items[iItem].pszText);
}
COMCTL32_Free (infoPtr->items);
}
if (infoPtr->hwndToolTip)
DestroyWindow (infoPtr->hwndToolTip);
if (infoPtr->hwndUpDown)
DestroyWindow(infoPtr->hwndUpDown);
if (infoPtr->iHotTracked >= 0)
KillTimer(hwnd, TAB_HOTTRACK_TIMER);
COMCTL32_Free (infoPtr);
SetWindowLongA(hwnd, 0, 0);
return 0;
}
static LRESULT WINAPI
TAB_WindowProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
TRACE("hwnd=%x msg=%x wParam=%x lParam=%lx\n", hwnd, uMsg, wParam, lParam);
if (!TAB_GetInfoPtr(hwnd) && (uMsg != WM_CREATE))
return DefWindowProcA (hwnd, uMsg, wParam, lParam);
switch (uMsg)
{
case TCM_GETIMAGELIST:
return TAB_GetImageList (hwnd, wParam, lParam);
case TCM_SETIMAGELIST:
return TAB_SetImageList (hwnd, wParam, lParam);
case TCM_GETITEMCOUNT:
return TAB_GetItemCount (hwnd, wParam, lParam);
case TCM_GETITEMA:
return TAB_GetItemA (hwnd, wParam, lParam);
case TCM_GETITEMW:
FIXME("Unimplemented msg TCM_GETITEMW\n");
return 0;
case TCM_SETITEMA:
return TAB_SetItemA (hwnd, wParam, lParam);
case TCM_SETITEMW:
FIXME("Unimplemented msg TCM_SETITEMW\n");
return 0;
case TCM_DELETEITEM:
return TAB_DeleteItem (hwnd, wParam, lParam);
case TCM_DELETEALLITEMS:
return TAB_DeleteAllItems (hwnd, wParam, lParam);
case TCM_GETITEMRECT:
return TAB_GetItemRect (hwnd, wParam, lParam);
case TCM_GETCURSEL:
return TAB_GetCurSel (hwnd);
case TCM_HITTEST:
return TAB_HitTest (hwnd, wParam, lParam);
case TCM_SETCURSEL:
return TAB_SetCurSel (hwnd, wParam);
case TCM_INSERTITEMA:
return TAB_InsertItem (hwnd, wParam, lParam);
case TCM_INSERTITEMW:
FIXME("Unimplemented msg TCM_INSERTITEMW\n");
return 0;
case TCM_SETITEMEXTRA:
FIXME("Unimplemented msg TCM_SETITEMEXTRA\n");
return 0;
case TCM_ADJUSTRECT:
return TAB_AdjustRect (hwnd, (BOOL)wParam, (LPRECT)lParam);
case TCM_SETITEMSIZE:
return TAB_SetItemSize (hwnd, wParam, lParam);
case TCM_REMOVEIMAGE:
FIXME("Unimplemented msg TCM_REMOVEIMAGE\n");
return 0;
case TCM_SETPADDING:
FIXME("Unimplemented msg TCM_SETPADDING\n");
return 0;
case TCM_GETROWCOUNT:
FIXME("Unimplemented msg TCM_GETROWCOUNT\n");
return 0;
case TCM_GETUNICODEFORMAT:
FIXME("Unimplemented msg TCM_GETUNICODEFORMAT\n");
return 0;
case TCM_SETUNICODEFORMAT:
FIXME("Unimplemented msg TCM_SETUNICODEFORMAT\n");
return 0;
case TCM_HIGHLIGHTITEM:
FIXME("Unimplemented msg TCM_HIGHLIGHTITEM\n");
return 0;
case TCM_GETTOOLTIPS:
return TAB_GetToolTips (hwnd, wParam, lParam);
case TCM_SETTOOLTIPS:
return TAB_SetToolTips (hwnd, wParam, lParam);
case TCM_GETCURFOCUS:
return TAB_GetCurFocus (hwnd);
case TCM_SETCURFOCUS:
return TAB_SetCurFocus (hwnd, wParam);
case TCM_SETMINTABWIDTH:
FIXME("Unimplemented msg TCM_SETMINTABWIDTH\n");
return 0;
case TCM_DESELECTALL:
FIXME("Unimplemented msg TCM_DESELECTALL\n");
return 0;
case TCM_GETEXTENDEDSTYLE:
FIXME("Unimplemented msg TCM_GETEXTENDEDSTYLE\n");
return 0;
case TCM_SETEXTENDEDSTYLE:
FIXME("Unimplemented msg TCM_SETEXTENDEDSTYLE\n");
return 0;
case WM_GETFONT:
return TAB_GetFont (hwnd, wParam, lParam);
case WM_SETFONT:
return TAB_SetFont (hwnd, wParam, lParam);
case WM_CREATE:
return TAB_Create (hwnd, wParam, lParam);
case WM_NCDESTROY:
return TAB_Destroy (hwnd, wParam, lParam);
case WM_GETDLGCODE:
return DLGC_WANTARROWS | DLGC_WANTCHARS;
case WM_LBUTTONDOWN:
return TAB_LButtonDown (hwnd, wParam, lParam);
case WM_LBUTTONUP:
return TAB_LButtonUp (hwnd, wParam, lParam);
case WM_RBUTTONDOWN:
return TAB_RButtonDown (hwnd, wParam, lParam);
case WM_MOUSEMOVE:
return TAB_MouseMove (hwnd, wParam, lParam);
case WM_ERASEBKGND:
return TAB_EraseBackground (hwnd, (HDC)wParam);
case WM_PAINT:
return TAB_Paint (hwnd, wParam);
case WM_SIZE:
return TAB_Size (hwnd, wParam, lParam);
case WM_SETREDRAW:
return TAB_SetRedraw (hwnd, wParam);
case WM_HSCROLL:
return TAB_OnHScroll(hwnd, (int)LOWORD(wParam), (int)HIWORD(wParam), (HWND)lParam);
case WM_STYLECHANGED:
TAB_SetItemBounds (hwnd);
InvalidateRect(hwnd, NULL, TRUE);
return 0;
case WM_KILLFOCUS:
case WM_SETFOCUS:
return TAB_FocusChanging(hwnd, uMsg, wParam, lParam);
case WM_KEYUP:
return TAB_KeyUp(hwnd, wParam);
default:
if (uMsg >= WM_USER)
WARN("unknown msg %04x wp=%08x lp=%08lx\n",
uMsg, wParam, lParam);
return DefWindowProcA (hwnd, uMsg, wParam, lParam);
}
return 0;
}
VOID
TAB_Register (void)
{
WNDCLASSA wndClass;
ZeroMemory (&wndClass, sizeof(WNDCLASSA));
wndClass.style = CS_GLOBALCLASS | CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW;
wndClass.lpfnWndProc = (WNDPROC)TAB_WindowProc;
wndClass.cbClsExtra = 0;
wndClass.cbWndExtra = sizeof(TAB_INFO *);
wndClass.hCursor = LoadCursorA (0, IDC_ARROWA);
wndClass.hbrBackground = (HBRUSH)NULL;
wndClass.lpszClassName = WC_TABCONTROLA;
RegisterClassA (&wndClass);
}
VOID
TAB_Unregister (void)
{
UnregisterClassA (WC_TABCONTROLA, (HINSTANCE)NULL);
}
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